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Forum: Service Manuals, Requests, Repair Tips

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  1. Sticky Thread Sticky: READ BEFORE YOU POST - do not post e-books, ieee papers here

    Started by pranam77, 29th August 2009 08:34
    • Replies: 0
    • Views: 21,741
    pranam77
    29th August 2009, 08:34 Go to last post

  1. How to fix Coax Cable of Vector Network Analyzer?

    Started by swadesh07, Today 20:44
    • Replies: 0
    • Views: 3
    swadesh07
    Today, 20:44 Go to last post

  2. 450w ATX smps switching voltage low

    Started by dey4su, 21st August 2019 10:23
    • Replies: 6
    • Views: 200
    dey4su
    Today, 19:56 Go to last post

  3. HP 54520A Blown Fuse Problem

    Started by neazoi, 7th January 2019 12:22
    2 Pages •
    1 2
    5 Attachment(s)
    • Replies: 32
    • Views: 1,232
    neazoi
    Today, 19:47 Go to last post

  4. SmartScope ZIP 250 Z-axis

    Started by Veketti, 21st August 2019 19:08
    3 Attachment(s)
    • Replies: 1
    • Views: 99
    Veketti
    Today, 17:56 Go to last post

  5. Electronic Load Circuit for 380 Vdc (2A to 3A) Power Supply

    Started by i200yrs, Yesterday 04:56
    • Replies: 5
    • Views: 197
    schmitt trigger
    Yesterday, 18:53 Go to last post

  6. Halogen Lamp Limit Resistor?

    Started by i200yrs, 7th August 2019 09:29
    1 Attachment(s)
    • Replies: 15
    • Views: 442
    c_mitra
    21st August 2019, 15:54 Go to last post

  7. IFC TG179 TO-92 (transistor)

    Started by i200yrs, 29th July 2019 07:44
    3 Attachment(s)
    • Replies: 4
    • Views: 433
    i200yrs
    21st August 2019, 10:31 Go to last post

  8. TTL to USB converter : RS232 to TRS

    Started by BobSan, 27th July 2019 18:02
    6 Attachment(s)
    • Replies: 8
    • Views: 514
    BobSan
    20th August 2019, 14:35 Go to last post

  9. Panel Mount NVIS LED Vendors name for Aerospace Application

    Started by AzharElectronics, 19th August 2019 16:24
    • Replies: 0
    • Views: 78
    AzharElectronics
    19th August 2019, 16:24 Go to last post

  10. How to build overcurrent/overvoltage protection

    Started by nurhidayah, 16th August 2019 10:18
    1 Attachment(s)
    • Replies: 1
    • Views: 233
    barry
    16th August 2019, 17:16 Go to last post

  11. Barudan BEDT - ZQ-501 Single Head - 8720 Control PCB

    Started by ServiceONE, 16th August 2019 02:45
    • Replies: 0
    • Views: 120
    ServiceONE
    16th August 2019, 02:45 Go to last post

  12. N7j3a marking transistor

    Started by hosseinhomerehe, 28th July 2019 05:53
    4 Attachment(s)
    • Replies: 6
    • Views: 626
    std_match
    14th August 2019, 09:50 Go to last post

  13. What Component is this

    Started by tdsflanked, 9th August 2019 13:15
    3 Attachment(s)
    • Replies: 1
    • Views: 247
    FvM
    9th August 2019, 16:41 Go to last post

  14. What might be wrong with this old piano?

    Started by fredand44, 28th July 2019 21:32
    7 Attachment(s)
    • Replies: 13
    • Views: 690
    fredand44
    8th August 2019, 21:20 Go to last post

  15. Soldering on Battery Terminals

    Started by joniengr, 12th July 2019 11:38
    • Replies: 11
    • Views: 731
    c_mitra
    8th August 2019, 13:34 Go to last post

  16. OP07 circuit output voltage?

    Started by steve_rb, 3rd August 2019 14:07
    2 Pages •
    1 2
    7 Attachment(s)
    • Replies: 24
    • Views: 747
    steve_rb
    7th August 2019, 19:11 Go to last post

  17. This is a simple capacitor or it has a resistor inside it?

    Started by brunofunchas, 6th August 2019 17:12
    1 Attachment(s)
    • Replies: 3
    • Views: 182
    brunofunchas
    7th August 2019, 11:05 Go to last post

  18. Turbine Backup Overspeed Pickup Probe Extraction Tool

    Started by Akanimo, 5th August 2019 15:20
    • Replies: 3
    • Views: 251
    Akanimo
    7th August 2019, 08:24 Go to last post

  19. A measurement issue in Signal generator and Spectrum Analyzer

    Started by Anomis, 2nd August 2019 04:48
    1 Attachment(s)
    • Replies: 1
    • Views: 177
    BigBoss
    2nd August 2019, 06:00 Go to last post

  20. 13.9 V instead of 2.75 v, Which parts are failing?

    Started by steve_rb, 31st July 2019 10:44
    1 Attachment(s)
    • Replies: 3
    • Views: 324
    steve_rb
    1st August 2019, 09:52 Go to last post

  21. Old resistor value recognition

    Started by imranahmed, 28th July 2019 12:23
    2 Attachment(s)
    • Replies: 3
    • Views: 337
    FvM
    28th July 2019, 13:47 Go to last post

  22. Identify components with marking code 1624HV

    Started by davoud, 24th July 2019 09:10
    3 Attachment(s)
    • Replies: 4
    • Views: 640
    FvM
    28th July 2019, 09:53 Go to last post

  23. Possible water damage inside keyboard

    Started by adam5555, 23rd July 2019 14:34
    1 Attachment(s)
    • Replies: 2
    • Views: 255
    c_mitra
    24th July 2019, 02:43 Go to last post

  24. chinese generator not working

    Started by FANT, 21st July 2019 16:17
    • Replies: 1
    • Views: 379
    kripacharya
    21st July 2019, 19:13 Go to last post

  25. Identify capacitor with marking code L62 104

    Started by Teslavivek, 19th July 2019 18:01
    1 Attachment(s)
    • Replies: 10
    • Views: 602
    KlausST
    20th July 2019, 09:31 Go to last post

  26. What is this sensor? (Can detect the clap sound)

    Started by alibarghi, 18th July 2019 15:37
    2 Attachment(s)
    • Replies: 4
    • Views: 329
    alibarghi
    19th July 2019, 13:35 Go to last post

  27. Help in diode code v6 12 Panasonic Plasma TH-P42X30D

    Started by hemant.yash, 13th May 2019 10:48
    4 Attachment(s)
    • Replies: 6
    • Views: 1,227
    betwixt
    18th July 2019, 16:03 Go to last post

  28. Technika lcd22-208 tv

    Started by KweenBo, 15th July 2019 15:36
    • Replies: 2
    • Views: 343
    KweenBo
    16th July 2019, 09:51 Go to last post

  29. Simple remote led stay on

    Started by elior77, 14th July 2019 09:45
    • Replies: 9
    • Views: 507
    elior77
    15th July 2019, 06:33 Go to last post

  30. Dirty circuit board causing failure

    Started by fixit7, 12th July 2019 07:40
    3 Attachment(s)
    • Replies: 11
    • Views: 706
    betwixt
    13th July 2019, 22:16 Go to last post
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